The Polax cup brush is used in combination with an angle grinder (Bulgarian) for quick cleaning of metal and other surfaces and elements from old paint, dirt, corrosion, signs of natural aging (patina), soil deposits. It can be used both in everyday life and in various industries for cleaning devices and mechanisms. The brush has a cup-shaped plastic base with a groove for a threaded connection with a Bulgarian, and its working part is made of high-strength and deformation-resistant corrugated wire, which has both high rigidity and moderate flexibility. The product is wear-resistant, durable and easy to maintain.